package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishDto;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.mapper.DishMapper;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;


@Service
public class DishServiceImpl extends ServiceImpl<DishMapper, Dish> implements DishService {
    @Autowired
    private DishFlavorService dishFlavorService;
    @Override
    public void saveDishAndFlavors(DishDto dishDto) {
        save(dishDto);
        Long id = dishDto.getId();
        List<DishFlavor> flavors = dishDto.getFlavors();
        for (DishFlavor flavor : flavors) {
            flavor.setDishId(id);
        }
        dishFlavorService.saveBatch(flavors);
    }

    @Override
    public DishDto getByIdWithFlavor(Long id) {
        DishDto dishDto=new DishDto();
        Dish dish = getById(id);
        BeanUtils.copyProperties(dish,dishDto);
        LambdaQueryWrapper<DishFlavor> lqw = new LambdaQueryWrapper<>();
        lqw.eq(DishFlavor::getDishId, id);
        List<DishFlavor> flavors = dishFlavorService.list(lqw);
        dishDto.setFlavors(flavors);
        return dishDto;
    }

    @Override
    public void updateWithFlavor(DishDto dishDto) {
        updateById(dishDto);
        LambdaQueryWrapper<DishFlavor> lqw=new LambdaQueryWrapper<>();
        lqw.eq(DishFlavor::getDishId,dishDto.getId());
        dishFlavorService.remove(lqw);
        List<DishFlavor> flavors = dishDto.getFlavors();
        for (DishFlavor flavor : flavors) {
            flavor.setDishId(dishDto.getId());
        }
        dishFlavorService.saveBatch(flavors);
    }

    @Override
    public void delete(List<Long> ids) {
        LambdaQueryWrapper<Dish> lqw=new LambdaQueryWrapper<>();
        lqw.in(Dish::getId,ids);
        lqw.eq(Dish::getStatus,1);
        int count = count(lqw);
        if (count>0){
            throw new CustomException("菜品正在售卖中,不允许删除");
        }
        removeByIds(ids);
    }
}
